<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			*{
				padding: 0;
				margin: 0;
			}
			#hd{
				width: 70%;
				height: 200px;
				background: dodgerblue;
				margin: 100px auto;
				min-width: 300px;
				max-width: 600px;
			}
		</style>
	</head>
	<body>
		<div id="hd">
			
		</div>
	</body>
</html>
